Plaster base



April 1, 1924.

' W. H. FAIRCHILD PLASTER BASE Filed May l0 1922 Patented pr. 1, 1924.

OFFICE.

PATEN WALTER H. FAIRCH'ILD, OF CHICAGO. ILLINOIS. ASSIGNOR TO MID-WESTBOX COM- PANY, OF ANDERSON, INDIANA, A CORPORATION OF INDIANA,

PLASTER BASE.

Application filed May 10, 1922. Serial No. 559.756.

T0 all 'whom t may concern.' i

Be it known that I. WALTER H. FAIR- CHILD, a citizen of the UnitedStates. and a resident of Chicago. in the countjv of Cook and State ofIllinois. have invented certain new and useful Improvements in PlasterBases, of which the following is a full. clear. and exact description.

The invention relates to plastering bases and its object is to providean improved base which serves to efficiently retain the plaster withoutwaste. may be readily applied to the usual studs of a building. andwhich is inexpensive in cost.

The invention consists in the several novel features hereinafter setforth and more particularly defined b v claims at the conclusion hereof.f

In the drawings: Fig. 1 is a perspective of ay portion of a Wallembodying the invention. Fig. 2 is a horizontal section. Fig. 3 is avertical section. I

The invention consists in forming a plastering base of a sheet of wovenwire lath consisting of strips of wire 11 connected b v strips 15 wovenobliquely back and forth and wrapped around the strips 11 and a backingformed of corrugated board. This backing comprises a back liner orfacing 7 a front liner or facing 8, an intermediate corrugated sheet 9,and a corrugated sheet 10 secured to the front face of the front liner8. These liners and corrugated sheets are all ermanently securedtogether to form a sti double faced corrugated board which iswaterproofed b v immersing it in a suitable solution of asphaltum afteror before the liners and corrugatedsheets have been united by a suitableadhesive. The woven wire lath or reinforcement extends over the front ofthe backing formed b v the corrugated sheet 10 and is secured to thebacking by staples 16 which extend through the backing and. have theirprongs bent around the meshes of the lath for convenience in hanthebase. The lath and backing are secured together befure the base isapplied to a building. so that the backing and lath ma)v be applied as aunit to the usual studs 12 or other part of a building. being usuall)1Secured thereto bv staples 13. In practice, the assembled Sheets of thebase usually extend horizontally. so that the base ma)7 be applied inlarge sections.

A characteristic of the present invention is that the backing has acorrugated front face which is contiguous to the back of the lath. sothat the plaster 11 applied through the lath will fill the grooves inthe corrugated sheet 10 and will be well bonded to the base.I Thebacking thus formed is eiceptionall;v light in weight. efficient inoperation and provides a channelled formation for the plaster rearwardly.of the lath. Thilst woven wire lath or reinforcement has beendescribed, it will be understood that other kinds may be used in lieuthereof.

The invention is not to be understood as restricted to the details setforth. since these may be modified within the scope. of the appendedclaims. without departing from the spirit and scope of the invention.

Having thus described the invention. what I claiin as new and desire tosecure b v Letters Patent. is:

1. A plaster base composed of water- .proofed corrugated board having acorrugated sheet on the frontl thereof and wire lath secured to theouter face of said board, comprising wires substantially parallel withthe corrugated board and obliquely woven wires between the parallelwires.

2. A plaster basev composed of waterproofed corrugated board and wirelath secured thereto comprising wires substantially parallel with thecorrugations of the board and obli uely woven wires between parallelWires, sald corrugated board comprising a. double faced corrugated sheetand an exposed corrugated sheet contiguous to the lath.

Signed at Chicago, Illinois, this 6th day of May, 1922.

WALTER H. FAIRCHILD.

